# HG changeset patch
# User Joshua M. Clulow <josh@sysmgr.org>
# Date 1348102084 0
# Node ID f56bf3fb65f4994e98700bd2a1a665b119c13640
# Parent  e9ad0a945d45fa505084dae395b047d7dfbc5a08
3202 prevent compiler function cloning
Reviewed by: Richard Lowe <richlowe@richlowe.net>
Approved by: Robert Mustacchi <rm@joyent.com>

diff -r e9ad0a945d45 -r f56bf3fb65f4 usr/src/Makefile.master
--- a/usr/src/Makefile.master	Wed Sep 19 15:53:16 2012 -0400
+++ b/usr/src/Makefile.master	Thu Sep 20 00:48:04 2012 +0000
@@ -344,8 +344,12 @@
 
 # GCC, especially, is increasingly beginning to auto-inline functions and
 # sadly does so separately not under the general -fno-inline-functions
+# Additionally, we wish to prevent optimisations which cause GCC to clone
+# functions -- in particular, these may cause unhelpful symbols to be
+# emitted instead of function names
 $(__GNUC4)CCNOAUTOINLINE= -_gcc=-fno-inline-small-functions \
-	-_gcc=-fno-inline-functions-called-once
+	-_gcc=-fno-inline-functions-called-once \
+	-_gcc=-fno-ipa-cp
 
 # One optimization the compiler might perform is to turn this:
 #	#pragma weak foo